Character.AI technical phone screen interview

Round 3 of 8 · 3 questions reported

See the whole loop
Length
60 min
Format
Live coding, usually in Python
They grade
Talking through the approach and edge cases counts as much as a working solution
Heads-up
A data structures problem at medium level (one guide says about two in 45 minutes), then a short talk on distributed systems or model inference.

Questions Character.AI asks in this round 3

About the Character.AI technical phone screen round

What does Character.AI ask in the technical phone screen round?

The most asked: Minimum window substring, How strings are stored and what copying them costs and Temporal key-value store with point-in-time reads and restore.

How long is the Character.AI technical phone screen round?

About 60 minutes.

What is the Character.AI technical phone screen round like?

Live coding, usually in Python. They grade: Talking through the approach and edge cases counts as much as a working solution.